Nov.11 (GMM) Red Bull's Dr Helmut Marko has joined his McLaren counterpart in criticising the official F1 feeder series, GP2.

The 2012 GP2 champion, Davide Valsecchi, has sat out the entire 2013 season so far as Lotus' reserve driver.

And Germany's Auto Motor und Sport reports that first and second in this year's series, champion Fabio Leimer and runner-up Sam Bird, have "no chance" of moving into F1 for 2014.

At the very same time, the completely separate Formula Renault 3.5 series has seen the McLaren-backed juniors Kevin Magnussen and Stoffel Vandoorne dominate in 2013.

Kevin Magnussen

Photo by: DPPI

And behind the McLaren pair this year was Red Bull's Antonio Felix da Costa, even though the energy drink company plucked Russian Daniil Kvyat straight out of GP3 to move into F1 with Toro Rosso for next season.